根据已知顶点求构成凸包的顶点集合（C#）

C:\Users\Administrator\Desktop\双色数据集实验\ConvexHull\ConvexHull\obj\x86\Debug\ConvexHull.Form1.resources C:\Users\Administrator\Desktop\双色数据集实验\ConvexHull\ConvexHull\obj\x86\Debug\ConvexHull.Properties.Resources.resources C:\Users\Administrator\Desktop\双色数据集实验\ConvexHull\ConvexHull\obj\x86\Debug\ConvexHull.csproj.GenerateResource.Cache C:\Users\Administrator\Desktop\双色数据集实验\ConvexHull\ConvexHull\bin\Debug\ConvexHull.exe C:\Users\Administrator\Desktop\双色数据集实验\ConvexHull\ConvexHull\bin\Debug\ConvexHull.pdb C:\Users\Administrator\Desktop\双色数据集实验\ConvexHull\ConvexHull\obj\x86\Debug\ConvexHull.exe C:\Users\Administrator\Desktop\双色数据集实验\ConvexHull\ConvexHull\obj\x86\Debug\ConvexHull.pdb